connection.type

Checks the active network connection that is being used.

Description

This property is a fast way to determine the device's network connection state, and type of connection.

Supported Platforms

  • iOS
  • Android
  • BlackBerry WebWorks (OS 5.0 and higher)
  • Windows Phone 7 ( Mango )
  • Bada 2.x
  • webOS
  • Tizen

Quick Example

function checkConnection() {
    var networkState = navigator.network.connection.type;

    var states = {};
    states[Connection.UNKNOWN]  = 'Unknown connection';
    states[Connection.ETHERNET] = 'Ethernet connection';
    states[Connection.WIFI]     = 'WiFi connection';
    states[Connection.CELL_2G]  = 'Cell 2G connection';
    states[Connection.CELL_3G]  = 'Cell 3G connection';
    states[Connection.CELL_4G]  = 'Cell 4G connection';
    states[Connection.NONE]     = 'No network connection';

    alert('Connection type: ' + states[networkState]);
}

checkConnection();

Full Example

<!DOCTYPE html>
<html>
  <head>
    <title>navigator.network.connection.type Example</title>

    <script type="text/javascript" charset="utf-8" src="cordova-2.1.0.js"></script>
    <script type="text/javascript" charset="utf-8">

    // Wait for Cordova to load
    // 
    document.addEventListener("deviceready", onDeviceReady, false);

    // Cordova is loaded and it is now safe to make calls Cordova methods
    //
    function onDeviceReady() {
        checkConnection();
    }

    function checkConnection() {
        var networkState = navigator.network.connection.type;

        var states = {};
        states[Connection.UNKNOWN]  = 'Unknown connection';
        states[Connection.ETHERNET] = 'Ethernet connection';
        states[Connection.WIFI]     = 'WiFi connection';
        states[Connection.CELL_2G]  = 'Cell 2G connection';
        states[Connection.CELL_3G]  = 'Cell 3G connection';
        states[Connection.CELL_4G]  = 'Cell 4G connection';
        states[Connection.NONE]     = 'No network connection';

        alert('[Connection](connection.html) type: ' + states[networkState]);
    }

    </script>
  </head>
  <body>
    <p>A dialog box will report the network state.</p>
  </body>
</html>

iOS Quirks

  • iOS cannot detect the type of cellular network connection.
    • navigator.network.connection.type is set to Connection.CELL_2G for all cellular data.

Bada Quirks

  • Bada can only detect a WiFi or cellular connection.
    • navigator.network.connection.type is set to Connection.CELL_2G for all cellular data.

webOS Quirks

  • Only shows that a connection is available, but not which type.

Windows Phone Quirks

  • Windows Phone Emulator always detects navigator.network.connection.type as [Connection](connection.html).UNKNOWN.

Tizen Quirks

  • Tizen can only detect a WiFi or cellular connection.
    • navigator.network.connection.type is set to Connection.CELL_2G for all cellular data.